Republic of the Philippines

DEPARTMENT OF EDUCATION
Region I
NARVACAN NATIONAL CENTRAL HIGH SCHOOL
Narvacan, Ilocos Sur

The Effect of Sunlight on the

Sprouting of Mung Bean
(Vigna radiata) Seeds

A Simple Scientific Research

Researchers:

Ysabel Mae C. Daria

Czarah Gloreinne C. Dangalan
Ayesha Rey Ann M. Cabico
Aila Brielle C. Cachuela
Parisse Nicole Jhoy Elumba
Allaine Sophia B. Figuerres
Pietrus Kleij S. Navalta
Prince Leonardo A. Posadas

Submitted to:

Cheryl C. Cantil
Project Adviser

March 2025
INTRODUCTION
 Plants need sunlight to grow, and sunlight helps them through a process called

photosynthesis, which gives them energy. One of the plants that need sunlight is Mung Bean.

Mung Bean is important because its seeds are used in many dishes. However, there is not

enough research to understand how different amounts of sunlight affect how fast Mung Bean

Seeds sprout. Some people believe that more sunlight will help the seeds sprout faster, while

others think it may not make much of a difference.

The purpose of this study is to find out how sunlight affects the sprouting of Mung

Bean Seeds. Specifically, this research will look at three different conditions: full sunlight,

partial sunlight, and no sunlight at all. By comparing how the seeds sprout under each

condition, we hope to discover which condition is best for faster sprouting.

Studies have shown that sunlight helps seeds grow. For example, a study by Jamhari

and Sani found that Mung Bean seeds sprouted better when they received enough sunlight.

The seeds that were kept in the dark or had less light did not grow as well. Now, this shows

that sunlight is important for helping Mung Beans sprout.

This study is important because it could lead to better farming techniques that help us

understand whether sunlight plays a big role in how quickly these seeds sprout and if it can

help in increasing the amount of Mung Bean grown. If we can figure out the best sunlight

conditions for sprouting, farmers can improve their crops and produce more food. The

findings could also be useful for other types of crops that need sunlight to grow.
I. RESEARCH PROBLEM

How does different sunlight exposure affect the germination rate and plant height of

Mung Bean Seeds?

II. HYPOTHESIS

Alternative Hypothesis: Different sunlight exposure affects the germination rate and plant

height of Mung Bean Seeds.

Null Hypothesis: Different sunlight exposure does not affect the germination rate and plant

height of Mung Bean Seeds.

III. EXPERMENTAL DESIGN

A. MATERIALS:

- 3 Pots

- 75 Mung Bean Seeds

- 750 grams of soil with fertilizer

- 50 mL of water each pot everyday

- Wire Mesh

- Beaker

B. VARIABLES:

Independent: The Amount of Sunlight

Dependent: The Sprouting Rate of Mung Bean Seeds

Control: The amount of water given to each pot, the type of soil used, and the

number of seeds planted in each pot.

C. PROCEDURE:

The mung bean seeds were first soaked in water for 8 minutes, and the seeds

that floated were removed. Then, the amount of soil needed for the experiment was

measured. A wire mesh was placed inside each pot to improve drainage and prevent

soil and seeds from escaping. After that, 250 grams of soil was added to each pot to

ensure equal distribution. Once the soil was prepared, 25 small holes were created in

each pot, and one mung bean seed was placed into each hole. The holes were then

covered with soil to secure the seed properly. Next, 50 mL of water was measured
using a beaker. And then lastly, the plants were watered by pouring the water around

the sides of each pot.

IV. DATA (Recorded in tabular or graphical format)

DATE NUMBER OF MUNG BEAN SPROUTS

DAY 1 0
DAY 2 0
DAY 3 15
DAY 4 15
DAY 5 16
DAY 6 17
DAY 7 19
DAY 8 19
DAY 9 21
DAY 10 84%

TABLE 1 – SET UP A
DATE NUMBER OF MUNG BEAN SPROUTS
DAY 1 0
DAY 2 19
DAY 3 19
DAY 4 21
DAY 5 21
DAY 6 22
DAY 7 22
DAY 8 22
DAY 9 23
DAY 10 92%
DATE NUMBER OF MUNG BEAN SPROUTS
DAY 1 0
DAY 2 15
DAY 3 20
DAY 4 21
DAY 5 21
DAY 6 22
DAY 7 23
DAY 8 23
DAY 9 23
DAY 10 92%

SET-UP COMPUTED AVERAGE HEIGHT OF

GERMINATION RATE PLANTS
A 84% 12.7 cm

B 92% 10.16 cm

C 92% 7.62 cm

TABLE 3 – SET UP C
V. RESULTS AND DISCUSSION
The experiment showed that Mung Beans germinated best in partial sunlight and no

sunlight (92%), while full sunlight had a lower germination rate (84%). This suggests that too

much sunlight reduce sprouting. Even though seeds can still germinate with full sunlight,

they might not sprout as well as those in less light exposure.

For plant height, Mung Bean in no sunlight (Set-up C) grew the tallest with 12.7 cm,

followed by partial sunlight (Set-up B) with 10.16 cm, and full sunlight (Set-up A) with 7.62

cm. Now, this shows that while Mung Beans can sprout without sunlight, their growth is still

affected by light exposure because sunlight help plants grow properly, but too much may

limit their height. A balanced amount of sunlight is important for strong and healthy plant

development.
IV. CONCLUSION

The experiment showed that Mung Bean seeds germinate best in partial sunlight (Set-up

B) and no sunlight (Set-up C), and full sunlight (Set-up A) reduces germination. However,

plants in no sunlight grew the tallest, while those in full sunlight were the shortest. This

means that while Mung Beans can still grow without sunlight, their growth is affected by

light exposure. Sunlight help plants develop properly, and too much or too little of it can

affect their growth that is why it should be balanced for strong and healthy plant

development.
 BIBLIOGRAPHY

Jamhari S., & Sani, A. (2018). The Effects of Salinity and Light to the Seed Germination Of

Mung Bean (Vigna radiata L..). International Journal of Humanities Social Sciences and

Education (IJHSSE). Retrieved from https://www.arcjournals.org/pdfs/ijhsse/v5-i7/4.pdf

DOCUMENTATION